Tag: sound and noise

Questions Related to sound and noise

What does music comprise of?

physics sound and noise musical sound and scale pleasant, unpleasant sounds and noise pollution sound noise and pollution

  1. High Frequency, regular waveform and no sudden changes in amplitude or wavelength

  2. Low Frequency, regular waveform and no sudden changes in amplitude or wavelength

  3. High Frequency, Irregular waveform and no sudden changes in amplitude or wavelength

  4. Low Frequency, Irregular waveform and sudden changes in amplitude or wavelength

Show answer
Correct Option: A
Explanation:

Music is harmonious sound described as high frequency, regular waveform and with no sudden changes in amplitude or wavelength.

Which of the following is / are effective for preventing noise pollution?

physics sound and noise musical sound and scale pleasant, unpleasant sounds and noise pollution sound noise and pollution

  1. Construction of sound proof rooms for noisy machinery in industries

  2. Ban on use of horns with jarring sound

  3. Vegetation along roads in residential areas

  4. All of the Above

Show answer
Correct Option: D
Explanation:

All the steps mentioned are effective ways, among others, for preventing noise pollution.

State whether given statement is True or False
Water animals are also subjected to noise pollution.

physics sound and noise musical sound and scale pleasant, unpleasant sounds and noise pollution sound noise and pollution

  1. True

  2. False

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Correct Option: A
Explanation:

Yes. Water animals are affected by submarines and other vehicles which travel through the sea or ocean creating loud sound waves in water.

State whether given statement is True or False
Noise pollution can cause partial hearing impairment.

physics sound and noise musical sound and scale pleasant, unpleasant sounds and noise pollution sound noise and pollution

  1. True

  2. False

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Correct Option: A
Explanation:

Noise pollution can cause partial hearing impairment to human ears.

What all are the sources of noise pollution?

physics sound and noise musical sound and scale pleasant, unpleasant sounds and noise pollution sound noise and pollution

  1. Household sources like mixers, grinders, vacuum cleaners etc.

  2. Social events with loud speakers

  3. Transportation noises, traffic jams

  4. All of the above

Show answer
Correct Option: D
Explanation:

All the given ones, among others, are effective sources of noise pollution.

State whether given statement is True or False
Both Noise and Music when very loud can be damaging to human ears.

physics sound and noise musical sound and scale pleasant, unpleasant sounds and noise pollution sound noise and pollution

  1. True

  2. False

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Correct Option: A
Explanation:

The statement is true. Any sound, music or noise, above $65\ dB$ of loudness, is harmful and damaging to human ears.

If pitch of a sound is pleasing to our ears, the sound is:

physics sound and noise musical sound and scale pleasant, unpleasant sounds and noise pollution sound noise and pollution

  1. Music

  2. Noise

  3. A combination of music and noise

  4. None of these

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Correct Option: A
Explanation:

Pitch of music is pleasing to our ears.

Amplitude of wave is:

physics sound and noise musical sound and scale pleasant, unpleasant sounds and noise pollution sound noise and pollution

  1. the distance wave moves in one second

  2. distance wave moves in one time period of wave

  3. maximum distance moved by medium particles on either side of mean position

  4. distance equal to 1 wavelength

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Correct Option: C
Explanation:

Amplitude is the maximum distance moved by medium particles on either side of mean position.

Fill in the blanks:

1) Perceived fundamental frequency of sound = ?

2) Quality of sound = ?

physics sound and noise musical sound and scale pleasant, unpleasant sounds and noise pollution sound noise and pollution
    1. Tone
      2. Pitch
    1. Pitch
      2. Tone
    1. Pitch
      2. Loudness
    1. Loudness
      2. Tone
Show answer
Correct Option: B
Explanation:

1) Pitch is defined as the perceived fundamental frequency of sound.

2) Tone is defined as the quality of sound.

Noise is produced by

physics sound and noise musical sound and scale pleasant, unpleasant sounds and noise pollution sound noise and pollution

  1. Vibration with high frequency

  2. Regular vibration

  3. Regular and periodic vibration

  4. Irregular and non-periodic vibration

Show answer
Correct Option: D
Explanation:

Smooth and periodic vibration is music and irregular and non-periodic vibration is noise.